<!DOCTYPE html>
<html lang="en" xmlns:v-on="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>hello</title>
</head>
<body>

    <div id="kuai">
        <button v-on:click="age++">你点我啊</button>

        {{age}}

    </div>
    <script src="./node_modules/vue/dist/vue.js"></script>
    <script>
        var heima = new Vue({
            el:"#kuai",
            data:{
                age:5
            }
        });
    </script>



</body>
</html>